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Operations SDR2-USB Configuration Guide rev 1.0
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3.3 Lithium battery maintenance
The SDR2-USB's real-time clock uses a small lithium battery to maintain
time when external power is unavailable. The life of this battery should
exceed 5 years.
If you find your SDR2-USB is not keeping time correctly when power is lost,
you may need to replace the battery. If necessary, replace the battery with a
Panasonic CR2032, or equivalent, making sure the positive (+) face is in
contact with the battery clip. After replacing the battery, be sure to reset the
SDR2-USB’s time and date.
3.4 Resetting to factory defaults
The SDR2-USB can be reset to factory defaults by removing the USB
storage device, holding the record button, and connecting power. Once
power is connected, the record button must be held for 5 seconds until the
flashing pattern is displayed on the front panel LEDs.
Resetting to factory defaults overrides all settings that have been changed via
the setup file.